[bigpurp]

Well, finally got my Vortech SC tuned with the AEM EMS and RC Engineering 550cc injectors by Frank Smith at SoFla Performance. First of all, I can't tell you guys how good it felt to finally be rid of that POS black box that came with the Vortech kit. Frank took one look at that thing after we pulled it and said: "This really scares me." Secondly, I can't say enough about how talented, thorough and knowledgeable Frank is as an AEM tuner. This guy REALLY knows his sh*t...and the results speak for themselves. Suffice it to say that, unless Frank suddenly disappears, I will NEVER need the services of another tuning shop again.

FYI, the only "performance" mods on my car (other than SC) are an upgraded clutch & lighter flywheel, Invidia exhaust and Denso IK24 plugs. Outside temp on dyno day was @ 75 degrees F.

A gratuitous shot of my car getting ready to go on the dyno: s2k30.JPG[/PHOTO]

The obligatory pic of my car on the dyno: s2k31.JPG[/PHOTO]

And the results on SFP's Dynojet (3rd gear pull): sfp dyno.jpg[/PHOTO]

A few points of interest. First, Frank has VTEC engaging at 3,200 RPM (and no, that's not a typo). :eek1: The difference in the car is simply AMAZING. After putting the SC on, I couldn't wait to drive it; now, I can't even stop THINKING about driving it. :D It is a completely different experience. The car feels like a beast.

Second, you will note that the AF ratio is VERY conservative at 12.1 MAX. This was Frank's idea, not mine. I wanted to push it to 12.5 at WOT and make more power, but Frank said :nono:. He feels that 12.5 is simply too risky on the F20C. I debated with him for some time about this, but in the end you see who won out. At this point, I am just happy knowing that I have 327 ponies at the wheels...and there is more power to be made if we want to go there. :rev:

Finally, b/c of the issue with the EMS and the temp gauge (it no longer works! :mad: ), Frank set the CEL to go off if the temp exceeds 235 degrees F. AEM really needs to address this issue, and I hope they do so in future versions of the EMS software.

All in all, I am VERY pleased. The power delivery is now soooo much smoother, and throttle response is incredibly improved. Now I just need to think up some more excuses to get in my car. :)

[Sideways]

:thumbup: Welcome to the AEM EMS club. How much boost are you huffing or is that puffing? Are you running the stock pulley? What octane were you running?

[Chitah831]

Whoa that's good stuff! Congrats!

Just out of curiosity... by having the VTEC engagement point set that low, does that have any long term effects on engine reliability since you'll be cruising in VTEC basically all the time? Might take a toll on the engine in a long run.

[bigpurp]

[QUOTE]Originally posted by Sideways
:thumbup: Welcome to the AEM EMS club.

[bigpurp]

Quote

Originally posted by Chitah831

Just out of curiosity... by having the VTEC engagement point set that low, does that have any long term effects on engine reliability since you'll be cruising in VTEC basically all the time? Might take a toll on the engine in a long run.

I actually asked my tuner this very same question, and he said no. I trust him. Also, the car is only driven @ 50 miles/week, and 95% of those are highway miles to boot, so I'm not too concerned. If it was my daily driver, I might feel differently.

[Young_R]

holy jebrezzzzz!! that is awesome. 3200 vtec :eek3: :yikes:

[Chitah831]

Well 50 miles a week is hardly anything. You should really drive your car more often :LOL:

That's pretty strange how it wouldn't really have an effect. I'd think since the 2nd cams will be running more often and sooner it might have some sort of issue down the line. But hopefully he's right :D

[fltsfshr]

all right purp!!! World of difference isn't it. You have your VTEC even lower than MINE! I'm at 4400. Nice a/f. I set my cel the same way...Isn't it great to have a power curve like that? I'm only getting 15mph though, have you checked yours?

And don't ya like those new injectors? Did your tuner comment on the differences between those and the old ones?
OldBald1's got his car down here getting 457's and a comptech housing. How about meeting us on the alley one day for an SC shootout..pictures drinks and fun included naturally.

I'm glad you like it....I just ordered new lightweight rims put a little more contact patch on the ground too isn't 2nd gear an absolute riot?

fltsfshr:drive: :drive: :rev: :LOL:

[bigpurp]

[QUOTE]Originally posted by fltsfshr
all right purp!!! World of difference isn't it. You have your VTEC even lower than MINE!

[DaWorm]

Bigpurp,

When you did the injectors... did you change out the FMU for a FPR?

[bigpurp]

Quote

Originally posted by DaWorm
Bigpurp,

When you did the injectors... did you change out the FMU for a FPR?

Nope.

[Salaska]

Great Numbers! :thumbup:


I wish i could find a good AEM EMS Tuner here in Germany, but so far i had no luck :(

Today i was on the Autobahn and hunted some Porsches and BMW's, man i love the SC :D

[Sideways]

[QUOTE]Originally posted by bigpurp

[fltsfshr]

[QUOTE]Originally posted by Sideways

[BlueS2000Boy]

nice numbers man

[johninator]

Question:

Why the torque dip between 4000 to 4700RPM? It seems like there is a second Vtec point at 4700RPM. Actually it was more like 10ft-lbs, fine tuning can smooth that part out easily by leaning it out more. Its probably good too since you can get better gas mileage that way around those RPM ranges.

Just to note, if the VTEC point is at 3200RPM, then you will always be running on the bigger cam while cruising the freeways. Won't wear and tear pose a problem here since it was not designed to be on all the time while cruising? Reliability may be an issue for such a low VTEC point.

How bout drivability issues? Im sure at WOT it feels like it shows on the dyno sheet. How bout regular driving?

[ItalianBucwheat]

You better compare your dyno chart with a close to stock s2000. Because below 5000 rpm you are making less power than a close to stock s2000. Unless I am confused. I just checked some stock s2000 dynos on this site and they are better than yours below 5000 rpm. I am almost positive your vtec is way to low!

[ItalianBucwheat]

My mistake I was looking at an 04 dyno. But I have seen some 03 and 02 dynos for close to stock cars and they are similar to about 5000 rpm. So not sure if the lower vtec is hurting or helping you in the horse power area. But it does help with the torque. Nice results ...sorry for my Brain Fart!

[shingles]

[QUOTE]Originally posted by johninator
Question:

Why the torque dip between 4000 to 4700RPM?

[ideugene]

vtec from 3200 to 9000 must be heaven

[bigpurp]

[QUOTE]Originally posted by johninator
Question:

Why the torque dip between 4000 to 4700RPM?

[jeffbrig]

Aaron, I thought you had decided on an eManage, when did that change? Your numbers look great, even better with the safe AF ratio. I still want a ride in that beast one day, I have a raincheck from our tech day, remember?

I agree with Shingles, I don't see any reliability issues running on VTEC cams. With a supercharger, you've changed the engine's breathing characteristics. If you wanted every bit of hp, now you'd start playing around with custom cams to find what provides the best flow for this setup. Moving the VTEC point around is just a simple way to try the 2 cam profiles that are already in the engine. If the dyno shows more power between 3500-6000 on the vtec cam profile, use it. The only potential 'gotcha' is that dyno testing is WOT, you may find that the vtec cam is less desirable at partial throttle in everyday driving. Which is problaby not a problem for a weekend driver.

My 2 cents,
Jeff

[bigpurp]

Quote

Originally posted by ideugene
vtec from 3200 to 9000 must be heaven

That's exactly how I would describe it. :D

[jahwerx]

nice work! That S/C torque curve looks like a HP curve - damn the harder you drive it the MORE it pulls!

so you decided to stick w/ the 550's? thought you were going even larger . . .

[bigpurp]

[QUOTE]Originally posted by jeffbrig
Aaron, I thought you had decided on an eManage, when did that change?